1-metric, conversions, scientific notation
what is 1 kilogram in pounds?
1kg=2.2046lbs
what is light made of and how does it behave?
light is a nonmatter, and it moves in small particles (photons)
what causes the seasons?
the earths tilt (23.5)
what is continental drift and who proposed it?
the theory that earths continents were once together-proposed by alfred wegner
convert 60miles to km
60miles=96.5606km
which part of the spectrum has the MOST energy?
gamma rays-high frequency, most energy
how is a moon different from the planets?
a moon orbits within a planets gravity
what scientific evidence supports the idea that continents were once connected?
pangea
geological clues
fossil clues
ocean floor drilling
paleoclimate data
continental fit
List the three different branches of MEGAHO
meteorology
environemntal
geology
astronomy
hydrology
oceanograhy
what are the three pieces of evidence that support the Big Bang theory ?
expansion/redshift
microwave radiation
nucleosysthesis
why is it summer in one hemisphere and winter in the other at the same time?
the earths tilt causes one hemispehre to lean toward the sun (summer) and the other away(winter)
list earths chemical layers in order from outermost to innermost
crust mantle core
lithosphere
asthenosphere
mesosphere
outer core
inner core
which lines run east to west
which lines run north and south
latitude
longitude
what units do we use to measure our universe?
astronomical units
kilometers
light years
parsecs
list the planets in order closest to farthest from the sun
mercury, venus, earth, mars, saturn, uranus, neptune
What are the three main types of plate boundries and what happens at each?
divergent-plates move away
convergent-plates collide
transform-horizontally slide past
what is the density of a rock with a volume of 50mL and a mass of 200g?
4g/mL
list the electromagnetic spectrum in order of longest to shortest wavelength
radiowaves, microwaves, infrared, ultra violet, x-rays, gamma rays
how are inner and outer planets differnt from eachother?
outerplants are gas and ice planets
innerplanets are terrestrial planets
what is plate tectonics and how does it explain the movement of earths surface?
earths crust + part of the upper mantle (lithosphere) is broke into sections called ¨plates¨
these plates float on the asthenosphere